Double-acting tool for planers and shapers.



No. 859,336. PATENTED JULY 9, 1907.

J .RIDDBLL.

DOUBLE ACTING TOOL FOR PLANE-RS AND SHAPERS.

APPLIOATION rum) 111:0. s. 1902.

2 SHEETS-SHEET 1.

John Ridden.

n1 Kalli! IXTII! cm, WASHINGTON. n4:v

I E JTUR No. 859,336. PATBNTED JULY 9, 1907.

J. RIDDELL.

DOUBLE ACTING TOOL FOR PLANERS AND SHAPERS- APPLICATION rmzn no. a,1902.

2 sums-sum 2. I

WTNESSES: INVE 0R flfii John Ridden. M I bqM/M flung.

UNITED STATES PATENT OFFICE.

JOHN RIDDELL, OF SOHENEOTADY, NEW YORK, ASSIGNOR TO GENERAL ELECTRICCOMPANY, A CORPORATION OF NEW YORK.

DOUBLE-ACTING TOOL FOR PLANERS AND SHAPERS.

Specification of Letters Patent.

Patented July 9, 1907.

Application filed December 3, 1902. Serial No- 133,635-

To all whom it may concern:

Be it known that 1, JOHN RIDDELL, a citizen of the United States,residing at Schenectady, county of Schenectady, State of New York, haveinvented certain new and useful Improvements in Double-Acting Tools forPlaners and Shapers, of which the following is a specification.

My invention relates to double-acting tools for metalworking machinery,such as planers, shapers, etc., and has for its obj cct to provide asimple double-acting tool which may be readily connected to ordisconnected from the ordinary forms of planers and shapers.

Double-acting tools, or tools which out upon both the forward and thereturn strokes, are used only for roughing out purposes, and mustaccordingly be replaced by a single-acting tool to finish each set-up ofwork and be reinserted again for each new set-up, and on account of thedifliculty and the time consumed in making these changes in devices ofthis kind, as heretofore constructed, they have been used but rarelyupon the larger planers and practically never upon small planers andshapers.

My invention consists of a tool-holder provided with a shank adapted tobe held in operative position by the ordinary tool post of a planer orshaper head, the only changes required to adapt the ordinary planer orshaper for use thereof consisting in the provision of an attachment forreversing the position of the tool and a catch to hold the apron fromoutward movement upon the back stroke.

The device is inexpensively applied to any planer or shaper, and isadapted to be connected and disconnected with the same facility as theordinary tool.

The invention will be more readily understood by reference to theaccompanying drawings formingapart of this specification, in whichFigure 1 is a view in perspective of the head of an ordinary shaper withone form of my invention applied thereto; Fig. 2 is a side elevation ofthe tool holder in position for horizontal feed, Fig. 3 is a similarview with the holder in position for vertical feed; Figs. 1, 5, G, 7 andS are detail views of the tool-holder; Fig. 9 is a side elevation of aplaner bed and tool head with a modified form of tool-holder appliedthereto; and Figs. and 11 are a side and end elevation respectively of amodified form of tool-holder.

As shown in the drawing, A is the stationary bed of a shaper, B is thework-holder, and O is the head provided with an apron D and tool post E,all of which are of ordinary and well known construction. The toolholdershown in the drawing has a plain rectangular bar shank 1 bent near oneend at about an angle of 45 degrees and provided at one side with a ringprojection 2 with a frusto-conical bearing 3 on its outer face, andthrough both the end of the shank l and the ring projection is acylindrical aperture 4 forming a bearing for the spindle of the toolclamp. A shouldered projection or stop 5 is formed at one point in theconical bearing 3 by cutting a recess in the face of the ring projection2 and inserting a short bar 6, which is held in place by a counter-sunkscrew.

The tool clamp, as shown in Figs. 1. to 8 consists of a rocking member 7and a clamping bolt 8. The clamping bolt 8 has a cylindrical head 9provided with a rectangular aperture 10 at right angles to its axis forthe reception of an ordinary two-edged tool F, and i has its outer end11 enlarged to substantially the same diameter as the ring projection 2,and on the inner end of the head is an axial rod 12 provided at its freeend with a nut 13.

The rocking member 7 of the tool clamp is cylindrical and ofsubstantially the same diameter as the ring projection 2. The front endis provid 'l with a cylindrical chamber 14 for the reception of theinner end of the head 9 of the clamping bolt and with a transverse slot15 for the reception of the tool F, but of slightly less depth than thethickness of the tool to permit of a clamping action thereon between thebottom of said slot 15 and the outer end 11 of the clamping bolt. Therear end of the member 7 is provided with a spindle 16 adapted to fitthe bearing in the end of the shank l and carries lock-nuts l7 and awasher18 at its free end. The rear end of the member 7 is provided witha frusto-conical bearing surface 19 adapted to fit the correspondingbearing surface 3 on the ring projection 2, and at one point in thesurface 19 a stop-recess 20 is provided of somewhat greater width thanthe width of the stop projection 5 on the ring projection 2, so that aslight oscillatory movement of the tool clamp relative to the supportingshank 1 is permitted at the end of each stroke. An axial aperture 21extends throughout the oscillating member 7 for the passage of the rod12 of the clamping bolt 8, the rear end of the spindle 16 serving as aseat for the nut 13. Projecting from one side oi the member 7 is arocker arm.22 with an aperture 23 in its end for the reception of an endof the means for shifting the position of the tool at each reciprocationof the shaper head.

The tool-shifting means consists of a rod24 having a shoulder 25 nearthe end which passes through the aperture 23 and a nut 26 at the end sothat a loose connection is provided between the rod and the tool-holder.The rod 24 is supported in a lug 27 secured to some stationary part ofthe shaper, and on the rod are two adjustable stop-rings 28 adapted tobe clamped in fixed positions by set screws.

In order to hold the apron D from outward movement 1 bore a hole throughthe side of the box and a short distance into the apron, and insert asteel wire pin 29.

When it is desired to remove the double-acting toolholder and insert anordinary tool for finishing purposes, the bolt in the tool post E isloosened in the usual manner and the nut 26 removed from the end of rod24, when the tool-holder is free to be taken out in the same manner thatthe ordinary tool is removed. By withdrawing pin 29 the shaper is put incondition to receive and operate the ordinary tool. It is to be notedthat the only additional operations necessary in disconnecting orconnecting my double-acting tool-holder over the ordinary operations arethe removal or replacing of nut 26, and the withdrawal or insertion ofpin 29. The lug 27 might be provided with a slot to permit the rod 24 tobe lifted out with the tool-holder instead of removing nut 26 ifdesired. The tool-clamp might be provided with two transverse aperturesin the place of aperture 10, and two oppositely arranged single-edgedtools used instead of the two-edged tool.

In the modification of the tool-holder shown in Figs. 9 and 11 therocking member 7 is provided with two arms 22 which are spaced apart andbent backward. so as to stand on opposite sides of the shank l, and inthe end of each arm is provided an adjustable stop consisting of a boltand lock nut adapted to engage the side of the shank 1 and thereby limitthe oscillation of the rocking head 7. As shown in Fig. 9, when thetoolholder is used in connection with a planer the toolapron D is heldfrom outward movement by a pin 29, and two stop projections 30, whichextend transversely of the planer bed and are connected thereto, engagethe opposite sides of the rocking member of the tool at the end of therespective reciprocations of the planer bed and reverse its positioncorresponding to the direction of travel. These stops 30 will be locatedat opposite ends of the work and will not interfere with the ordinarytool, and accordingly will not require to be re moved and replaced foreach set-up.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is,

1. The combination of a shank bent at one end and pro vided at one sidewith a rin, projection, an oscillating clamping member journaled in thebent end of the shank and bearing against the ring projection, means forlimiting the oscillations of the said clamping member, and a clampingbolt extending through said member.

2. The combination of a shank adapted to be received and held by thetool-post of a planer or shaper, an oscillating toolcla1nping memberjournale'd in said shank and pro-- vided with spaced arms adapted toengage said shank and limit the oscillations of said clamping member.

3. The combination of a shank adapted to be received and held by thetoolpost of a planer or shaper, an oscillating tool-clamping memberjournaled in said shank and provided with spaced arms, and means foradjusting the extent of oscillations of said member.

4.. The combination of a shank adapted to be received and held by thetool-post of a planer or shaper, a shouldered rocking member journaledin said shank, and a clamping member provided with a transverse apertureand an axial rod extending through said rocking member and fitted with anut at its rear end.

In witness whereof I have hereunto set my hand this 1st day of December,1902.

JOHN RIDDELL.

Witnesses EDWARD WILLIAMS, J12, HELEN Onrroirn

